Download or read book Hypervelocity Impact Analysis of International Space Station Whipple and Enhanced Stuffed Whipple Shields written by Michael E. Kalinski and published by . This book was released on 2004-12 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Space Station (ISS) must be able to withstand the hypervelocity impacts of micrometeoroids and orbital debris that strike its many surfaces. In order to design and implement shielding which will prevent hull penetration or other operational losses, NASA must first model the orbital debris and micrometeoroid environment. Based upon this environment, special multi-stage shields called Whipple and Enhanced Stuffed Whipple Shields are developed and implemented to protect the ISS surfaces. Ballistic limit curves that establish shield failure criteria are determined via ground testing. These curves are functions of material strength, shield spacing, projectile size, shape and density, as well as a number of other variables. The combination of debris models and ballistic limit equations allows NASA to model risk to the ISS using a hydrocode called BUMPER. This thesis modifies and refines existing ballistic limit equations for U.S. Laboratory Module shields to account for the effects of the projectile (debris/ micro-meteoroid) densities. Using these refined ballistic limit equations this thesis also examines alternative shielding materials and configurations to optimize shield design for minimum mass and maximum stopping potential, proposing alternate shield designs for future NASA ground testing. A final goal of this thesis is to provide the Department of Defense a background in satellite shield theory and design in order to improve protection against micrometeoroid and orbital debris impacts on future space-based national systems.
Download or read book Protecting the Space Station from Meteoroids and Orbital Debris written by Division on Engineering and Physical Sciences and published by National Academies Press. This book was released on 1997-02-02 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteoroid Debris Shielding written by Eric Lewis Christiansen and published by . This book was released on 2002 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hypervelocity Impact Study for Migration from Kevlar KM2 705 to KM2 Plus 775 written by Joshua E. Miller and published by . This book was released on 2021 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulations of Hypervelocity Impact Experiments Involving Single Whipple Bumper Shields written by and published by . This book was released on 1993 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well-controlled hypervelocity impact experiments, conducted in support of the Space Station Shielding program, were numerically modeled using two sophisticated hydrocodes, the multidimensional hydrodynamics code (CTH) and the Smoothed Particle Hydrodynamics code (SPH). The experiments simulated the impact of space debris on single shields and single Whipple bumper shield plate configurations. Impact velocities on the order of 10 km/s were applied to gram- sized flier lates and spherical projectiles that struck thin (
Download or read book Hypervelocity Impact Study for Migration from Kevlar u02CD 2 u0DF0 5 to KM2 us 775 written by Joshua E. Miller and published by . This book was released on 2021 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Models In High speed Penetration Mechanics And Their Applications In 2 Volumes written by Gabi Ben-dor and published by World Scientific. This book was released on 2018-12-28 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume, 1100 pages, 38 chapters book is a significantly expanded, revised and updated version of the monograph by the authors published in 2013 (Ben-Dor, G, Dubinsky, A, Elperin, T, 'High Speed Penetration Dynamics: Engineering Models and Methods,' Singapore: World Scientific Publishing Company). The contents increased by 60%, the number of titles in bibliography doubled and reached 1600; and the scope covers a range of new topics related to hypervelocity penetration, along with high-speed impact.Presented material is structured into two parts. The first part includes description and analysis of practically all known engineering models for calculating high-speed penetration of projectiles into concrete, metals, geological shields, adobe, and gelatine.The second part focuses on the use of approximate models for solving conventional and non-standard problems of penetration mechanics including prediction and optimization of protective properties of monolithic and multi-layered shields against high-speed projectiles and space debris; shape optimization of high-speed projectiles penetrating into various media; modelling of penetration and optimal control of penetrators equipped with jet thrusters; and investigation of the efficiency and optimization of segmented projectiles. The book includes comprehensive overviews on basic classes of problems in high-speed penetration mechanics.This is a indispensable reference guide for scientists, engineers, and students specializing in the field of high-speed and hypervelocity penetration mechanics.
Download or read book Hypervelocity Impact written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-07 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2003 and 2004, the Johnson Space Center's White Sands Testing Facility in Las Cruces, New Mexico conducted hypervelocity impact tests on the space shuttle wing leading edge. Hypervelocity impact tests were conducted to determine if Micro-Meteoroid/Orbital Debris impacts could be reliably detected and located using simple passive ultrasonic methods. The objective of Targets A-1, A-2, and B-2 was to study hypervelocity impacts through multi-layered panels simulating Whipple shields on spacecraft. Impact damage was detected using lightweight, low power instrumentation capable of being used in flight.
Download or read book Orbital Debris written by National Research Council and published by National Academies Press. This book was released on 1995-07-07 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Download or read book Design of Orbital Debris Shields for Oblique Hypervelocity Impact written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new impact debris propagation code was written to link CTH simulations of space debris shield perforation to the Lagrangian finite element code DYNA3D, for space structure wall impact simulations. This software (DC3D) simulates debris cloud evolution using a nonlinear elastic-plastic deformable particle dynamics model, and renders computationally tractable the supercomputer simulation of oblique impacts on Whipple shield protected structures. Comparison of three dimensional, oblique impact simulations with experimental data shows good agreement over a range of velocities of interest in the design of orbital debris shielding. Source code developed during this research is provided on the enclosed floppy disk. An abstract based on the work described was submitted to the 1994 Hypervelocity Impact Symposium. Fahrenthold, Eric P. Unspecified Center COMPUTERIZED SIMULATION; HYPERVELOCITY IMPACT; SPACE DEBRIS; SPACECRAFT SHIELDING; ELASTIC DEFORMATION; FINITE ELEMENT METHOD; LAGRANGIAN FUNCTION; PLASTIC DEFORMATION; SPACECRAFT STRUCTURES; SUPERCOMPUTERS...
Download or read book Hypervelocity Impact Testing of the Space Station Utility Distribution System Carrier written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two-phase, joint JSC and McDonnell Douglas Aerospace-Huntington Beach hypervelocity impact (HVI) test program was initiated to develop an improved understanding of how meteoroid and orbital debris (M/OD) impacts affect the Space Station Freedom (SSF) avionic and fluid lines routed in the Utility Distribution System (UDS) carrier. This report documents the first phase of the test program which covers nonpowered avionic line segment and pressurized fluid line segment HVI testing. From these tests, a better estimation of avionic line failures is approximately 15 failures per year and could very well drop to around 1 or 2 avionic line failures per year (depending upon the results of the second phase testing of the powered avionic line at White Sands). For the fluid lines, the initial McDonnell Douglas analysis calculated 1 to 2 line failures over a 30 year period. The data obtained from these tests indicate the number of predicted fluid line failures increased slightly to as many as 3 in the first 10 years and up to 15 for the entire 30 year life of SSF. Lazaroff, Scott Johnson Space Center...
Download or read book Hypervelocity Impact Hvi Volume 1 General Introduction written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-14 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2003 and 2004, the Johnson Space Center's White Sands Testing Facility in Las Cruces, New Mexico conducted hypervelocity impact tests on the space shuttle wing leading edge. Hypervelocity impact tests were conducted to determine if Micro-Meteoroid/Orbital Debris impacts could be reliably detected and located using simple passive ultrasonic methods. This volume contains an executive summary, overview of the method, brief descriptions of all targets, and highlights of results and conclusions. Gorman, Michael R. and Ziola, Steven M. Langley Research Center NASA/CR-2007-214885/VOL1
Download or read book Hypervelocity Impact HVI Volume 1 General Introduction written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-03 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2003 and 2004, the Johnson Space Center's White Sands Testing Facility in Las Cruces, New Mexico conducted hypervelocity impact tests on the space shuttle wing leading edge. Hypervelocity impact tests were conducted to determine if Micro-Meteoroid/Orbital Debris impacts could be reliably detected and located using simple passive ultrasonic methods. This volume contains an executive summary, overview of the method, brief descriptions of all targets, and highlights of results and conclusions. Gorman, Michael R. and Ziola, Steven M. Langley Research Center NASA/CR-2007-214885/VOL1 NNL05AC19T; WBS 377816.06.03.03.06 HYPERVELOCITY IMPACT; SPACE SHUTTLES; LEADING EDGES; IMPACT TESTS; TEST FACILITIES; SPACE DEBRIS; ULTRASONICS; MICROMETEOROIDS; DETECTION; SPALLING; WAVEFORMS; SIMULATION; KINETIC ENERGY; DATA PROCESSING
Download or read book Signal and Information Processing Networking and Computers written by Jiande Sun and published by Springer Nature. This book was released on 2022-07-01 with total page 1534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects selected papers from the 8th Conference on Signal and Information Processing, Networking and Computers held in Ji’nan, Shandong, China on September 13-17, 2021. It focuses on the current works of information theory, communication system, computer science, aerospace technologies and big data and other related technologies. Readers from both academia and industry of this field can contribute and find their interests from the book.
Download or read book Hypervelocity Impact Hvi Volume 2 Wle Small Scale Fiberglass Panel Flat Multi Layer Targets A 1 A 2 and B 1 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2003 and 2004, the Johnson Space Center's White Sands Testing Facility in Las Cruces, New Mexico conducted hypervelocity impact tests on the space shuttle wing leading edge. Hypervelocity impact tests were conducted to determine if Micro-Meteoroid/Orbital Debris impacts could be reliably detected and located using simple passive ultrasonic methods. The objective of Targets A-1, A-2, and B-2 was to study hypervelocity impacts through multi-layered panels simulating Whipple shields on spacecraft. Impact damage was detected using lightweight, low power instrumentation capable of being used in flight. Gorman, Michael R. and Ziola, Steven M. Langley Research Center HYPERVELOCITY IMPACT; GLASS FIBERS; PANELS; LEADING EDGES; SIMULATION; WINGS; TARGETS; IMPACT TESTS; SPACE DEBRIS; DETECTION; SIGNAL TRANSMISSION; METEORITE COLLISIONS; WAVEFORMS; KINETIC ENERGY; LINEARITY; ELECTROMAGNETIC INTERFERENCE; TEST FACILITIES
Download or read book Hypervelocity Impact Test Results for a Metallic Thermal Protection System written by Katherine L. Karr and published by . This book was released on 2003 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Limiting Future Collision Risk to Spacecraft written by National Research Council and published by National Academies Press. This book was released on 2011-12-16 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Derelict satellites, equipment and other debris orbiting Earth (aka space junk) have been accumulating for many decades and could damage or even possibly destroy satellites and human spacecraft if they collide. During the past 50 years, various National Aeronautics and Space Administration (NASA) communities have contributed significantly to maturing meteoroid and orbital debris (MMOD) programs to their current state. Satellites have been redesigned to protect critical components from MMOD damage by moving critical components from exterior surfaces to deep inside a satellite's structure. Orbits are monitored and altered to minimize the risk of collision with tracked orbital debris. MMOD shielding added to the International Space Station (ISS) protects critical components and astronauts from potentially catastrophic damage that might result from smaller, untracked debris and meteoroid impacts. Limiting Future Collision Risk to Spacecraft: An Assessment of NASA's Meteoroid and Orbital Debris Program examines NASA's efforts to understand the meteoroid and orbital debris environment, identifies what NASA is and is not doing to mitigate the risks posed by this threat, and makes recommendations as to how they can improve their programs. While the report identified many positive aspects of NASA's MMOD programs and efforts including responsible use of resources, it recommends that the agency develop a formal strategic plan that provides the basis for prioritizing the allocation of funds and effort over various MMOD program needs. Other necessary steps include improvements in long-term modeling, better measurements, more regular updates of the debris environmental models, and other actions to better characterize the long-term evolution of the debris environment.
